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11. 发明授权

US09965224B2 Systems and methods for enabling replication targets to reclaim unused storage space on thin-provisioned storage systems 有权
公开(公告)号：US09965224B2
公开(公告)日：2018-05-08
申请号：US12712186
申请日：2010-02-24
申请人： Niranjan Pendharkar , Shailesh Vaman Marathe , Venkata Tatavarty
发明人： Niranjan Pendharkar , Shailesh Vaman Marathe , Venkata Tatavarty
IPC分类号： G06F12/00 , G06F3/06
CPC分类号： G06F3/0665 , G06F3/0608 , G06F3/067
摘要： A computer-implemented method for enabling replication targets to reclaim unused storage space on thin-provisioned storage systems may include: 1) replicating data from a replication source to a replication target, 2) identifying unused storage space within the replicated data, 3) generating a reclamation request for reclaiming the unused storage space from a thin-provisioned storage system that provides thin-provisioned storage for the replication target, and then 4) issuing the reclamation request to the thin-provisioned storage system in order to reclaim the unused storage space from the thin-provisioned storage system. Various other related systems, methods, and configured computer-readable media are also disclosed.

12. 发明授权

US09524190B1 Systems and methods for caching data on virtualization servers 有权
标题翻译：用于在虚拟化服务器上缓存数据的系统和方法
公开(公告)号：US09524190B1
公开(公告)日：2016-12-20
申请号：US13607434
申请日：2012-09-07
申请人： Niranjan Pendharkar
发明人： Niranjan Pendharkar
IPC分类号： G06F9/48
CPC分类号： G06F9/4856 , G06F9/45558 , G06F9/5077 , G06F2009/45579 , G06F2009/45583
摘要： A computer-implemented method for caching data on virtualization servers may include: 1) providing a virtualization server that executes at least one virtual machine on the virtualization server, 2) intercepting a data operation that includes both basic data and metadata, the data operation being requested by the virtualization server, 3) caching the basic data from the data operation on a solid state drive cache at the virtualization server, and 4) preventing the solid state drive cache from providing metadata from the data operation to the virtualization server. Various other methods, systems, and computer-readable media are also disclosed.
摘要翻译：用于在虚拟化服务器上缓存数据的计算机实现的方法可以包括：1）提供在虚拟化服务器上执行至少一个虚拟机的虚拟化服务器，2）拦截包括基本数据和元数据的数据操作，数据操作是虚拟化服务器请求; 3）从虚拟化服务器上的固态驱动器高速缓存数据操作的基本数据; 4）防止固态驱动器缓存从数据操作向虚拟化服务器提供元数据。还公开了各种其它方法，系统和计算机可读介质。

13. 发明授权

US09077579B1 Systems and methods for facilitating access to shared resources within computer clusters 有权
标题翻译：促进计算机集群内共享资源访问的系统和方法
公开(公告)号：US09077579B1
公开(公告)日：2015-07-07
申请号：US13397255
申请日：2012-02-15
申请人： Jiang-Hsing Chu , Shailesh Marathe , Niranjan Pendharkar
发明人： Jiang-Hsing Chu , Shailesh Marathe , Niranjan Pendharkar
IPC分类号： G06F15/173 , H04L29/06
CPC分类号： H04L29/06 , G06F9/468
摘要： A computer-implemented method for facilitating access to shared resources within computer clusters may include (1) identifying a computer cluster, (2) identifying at least one node within the computer cluster that has been selected to execute an application, (3) identifying at least one different node within the computer cluster that has not yet been selected to execute the application, (4) importing a read-write configuration of at least one shared resource to the node, (5) importing a read-only configuration of the shared resource to the different node, (6) determining, after importing the read-only configuration of the shared resource to the different node, that the different node has been selected to execute the application, and then (7) converting, in response to this determination, the different node's read-only configuration of the shared resource to the read-write configuration of the shared resource. Various other systems, methods, and computer-readable media are also disclosed.
摘要翻译：用于促进对计算机集群内的共享资源的访问的计算机实现的方法可以包括（1）识别计算机集群，（2）识别已经被选择执行应用的计算机集群内的至少一个节点，（3）计算机集群内尚未被选择执行应用程序的至少一个不同节点，（4）将至少一个共享资源的读写配置导入节点，（5）导入共享的只读配置资源到不同节点，（6）在将共享资源的只读配置导入到不同节点之后，确定已经选择了不同节点来执行应用，然后（7）响应于此确定，不同节点的只读配置共享资源到共享资源的读写配置。还公开了各种其它系统，方法和计算机可读介质。

14. 发明授权

US08799222B2 Host based software block level replication using metadata indicating changed data objects at source and secondary nodes 有权
标题翻译：基于主机的软件块级复制，使用元数据指示源节点和辅助节点上的更改的数据对象
公开(公告)号：US08799222B2
公开(公告)日：2014-08-05
申请号：US12971498
申请日：2010-12-17
申请人： Shailesh Marathe , Ashish Gawali , Niranjan Pendharkar
发明人： Shailesh Marathe , Ashish Gawali , Niranjan Pendharkar
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30997 , G06F11/1451 , G06F11/1458 , G06F2201/84
摘要： A host-based replication snapshot method. The method includes synchronizing a set of data objects stored at both a replication source node and a secondary node. The method further includes identifying changed data objects out of the set of data objects from the replication source node that have been modified during a time period between a first time and a subsequent second time. Metadata indicating the changed data objects from the replication source node is transmitted to the secondary node. A snapshot is then generated at the second time on the secondary node by using the metadata.
摘要翻译：基于主机的复制快照方法。该方法包括同步存储在复制源节点和辅助节点两者中的一组数据对象。该方法还包括从在第一时间和随后的第二时间之间的时间段内被修改的来自复制源节点的数据对象集合中识别改变的数据对象。指示来自复制源节点的更改的数据对象的元数据被发送到辅助节点。然后通过使用元数据在次要节点上第二次生成快照。

15. 发明授权

US08560801B1 Tiering aware data defragmentation 有权
标题翻译：分层感知数据碎片整理
公开(公告)号：US08560801B1
公开(公告)日：2013-10-15
申请号：US13081685
申请日：2011-04-07
申请人： Niranjan Pendharkar , Ashish Karnik
发明人： Niranjan Pendharkar , Ashish Karnik
IPC分类号： G06F12/00
CPC分类号： G06F3/0644 , G06F3/061 , G06F3/0685
摘要： Various systems and methods for performing tiering-aware data defragmentation. One method can involve receiving tiering information from a storage device that comprises multiple tiers. The information specifies a tiering attribute and tiering attribute value for the tiers. The method involves establishing zones that have zone attribute values corresponding to the received tiering attribute values. The method then involves storing a given block in a particular zone in response to detecting that a block attribute value of the block corresponds to a zone attribute value for the zone.
摘要翻译：用于执行分层感知数据碎片整理的各种系统和方法。一种方法可以涉及从包括多层的存储设备接收分层信息。该信息指定层次的分层属性和分层属性值。该方法涉及建立具有对应于接收到的分层属性值的区域属性值的区域。该方法然后涉及将给定块存储在特定区域中，以响应于检测到该块的块属性值对应于该区域的区域属性值。

16. 发明授权

US08527990B1 Systems and methods for migrating virtual machines 有权
标题翻译：用于迁移虚拟机的系统和方法
公开(公告)号：US08527990B1
公开(公告)日：2013-09-03
申请号：US13097635
申请日：2011-04-29
申请人： Shailesh Vaman Marathe , Niranjan Pendharkar , Kedar Patwardhan
发明人： Shailesh Vaman Marathe , Niranjan Pendharkar , Kedar Patwardhan
IPC分类号： G06F9/455
CPC分类号： G06F9/4856 , G06F9/45558 , G06F2009/4557
摘要： A computer-implemented method for migrating virtual machines may include: 1) identifying a request to migrate a virtual machine from a primary site to a secondary site, the primary site including a primary storage device used by the virtual machine and configured for asynchronous replication to a secondary storage device at the secondary site, 2) identifying a difference map that reflects differences between data on the primary storage device and the secondary storage device, 3) initiating the virtual machine at the secondary site, 4) intercepting an input/output attempt from the virtual machine at the secondary site to the secondary storage device, 5) determining, based on the difference map, that a region of the input/output attempt has not been synchronized from the primary storage device, and 6) retrieving the region from the primary storage device before allowing the input/output attempt to proceed. Various other methods, systems, and computer-readable media are disclosed.
摘要翻译：用于迁移虚拟机的计算机实现的方法可以包括：1）识别将虚拟机从主站点迁移到辅助站点的请求，所述主站点包括虚拟机使用的主存储设备并且被配置为用于异步复制到辅助站点上的辅助存储设备，2）识别反映主存储设备和辅助存储设备上的数据之间的差异的差异映射，3）在辅助站点启动虚拟机，4）拦截输入/输出尝试从次要站点的虚拟机到次要存储设备，5）基于差异映射确定输入/输出尝试的区域未与主存储设备同步，以及6）从允许输入/输出尝试继续进行的主存储设备。公开了各种其它方法，系统和计算机可读介质。

17. 发明授权

US08386717B1 Method and apparatus to free up cache memory space with a pseudo least recently used scheme 有权
标题翻译：使用伪最近最少使用的方案来释放缓存存储器空间的方法和装置
公开(公告)号：US08386717B1
公开(公告)日：2013-02-26
申请号：US12877209
申请日：2010-09-08
申请人： Anindya Banerjee , Niranjan Pendharkar , Michael Patrick Wahl
发明人： Anindya Banerjee , Niranjan Pendharkar , Michael Patrick Wahl
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F12/123 , G06F12/0868
摘要： A mechanism is provided for identifying data that can be removed from a cache memory by determining a memory region of the cache that is less recently accessed than other memory regions in the cache. A tree data structure is used to store a mapping of storage volume data locations to cache data locations. A counter reflecting recency of access to the cache data location is associated with each entry. The counter is incremented, along with counters associated with keys leading to a node including the entry, with each access to the associated cache memory location, while other counters in each affected node are decremented. Advantages of the tree data structure are used to efficiently locate a cache memory location associated with a counter reflecting a less recently accessed state in order to make that cache memory location available for storage of recently accessed data from the storage volume.
摘要翻译：提供了一种机制，用于通过确定高速缓存的存储区域来识别可从高速缓冲存储器中移除的数据，该存储器区域最近被访问的高速缓存中的其他存储器区域。树数据结构用于存储存储卷数据位置到高速缓存数据位置的映射。反映对高速缓存数据位置的访问的新近度的计数器与每个条目相关联。递增计数器，以及与通向包括条目的节点的密钥相关联的计数器，每个访问相关联的高速缓冲存储器位置，而每个受影响的节点中的其他计数器递减。使用树数据结构的优点来有效地定位与反映最近访问状态的计数器相关联的高速缓冲存储器位置，以便使高速缓冲存储器位置可用于从存储卷存储最近访问的数据。

18. 发明申请

US20110208931A1 Systems and Methods for Enabling Replication Targets to Reclaim Unused Storage Space on Thin-Provisioned Storage Systems 有权
标题翻译：启用复制目标的系统和方法，以在精简配置的存储系统上回收未使用的存储空间
公开(公告)号：US20110208931A1
公开(公告)日：2011-08-25
申请号：US12712186
申请日：2010-02-24
申请人： Niranjan Pendharkar , Shailesh Vaman Marathe , Venkata Tatavarty
发明人： Niranjan Pendharkar , Shailesh Vaman Marathe , Venkata Tatavarty
IPC分类号： G06F12/16 , G06F12/00 , G06F12/02 , G06F15/173
CPC分类号： G06F3/0665 , G06F3/0608 , G06F3/067
摘要： A computer-implemented method for enabling replication targets to reclaim unused storage space on thin-provisioned storage systems may include: 1) replicating data from a replication source to a replication target, 2) identifying unused storage space within the replicated data, 3) generating a reclamation request for reclaiming the unused storage space from a thin-provisioned storage system that provides thin-provisioned storage for the replication target, and then 4) issuing the reclamation request to the thin-provisioned storage system in order to reclaim the unused storage space from the thin-provisioned storage system. Various other related systems, methods, and configured computer-readable media are also disclosed.
摘要翻译：用于使复制目标能够回收稀疏配置的存储系统上未使用的存储空间的计算机实现的方法可以包括：1）将数据从复制源复制到复制目标，2）识别复制数据内的未使用的存储空间，3）产生从为提供用于复制目标的精简供应的存储系统的精简供应存储系统回收未使用的存储空间的回收请求，然后4）向稀疏供应的存储系统发出回收请求以回收未使用的存储空间从精简的存储系统。还公开了各种其它相关系统，方法和配置的计算机可读介质。

19. 发明授权

US10296428B2 Continuous replication in a distributed computer system environment 有权
公开(公告)号：US10296428B2
公开(公告)日：2019-05-21
申请号：US12781292
申请日：2010-05-17
申请人： Samir Desai , Niranjan Pendharkar
发明人： Samir Desai , Niranjan Pendharkar
IPC分类号： G06F17/30 , G06F11/20
摘要： A method for implementing continuous data replication in a distributed computer system. The method includes receiving a forwarded data object write I/O from a data server. The method further includes examining attribute information of the data object to determine a consistency group for the data object. A replication policy is examined in view of the consistency group of the data object to determine a destination redundancy server. The data object write I/O is forwarded to the destination redundancy server for storage. An acknowledgment is then sent to the data server upon storage of the data object in the destination redundancy server.

20. 发明授权

US09953035B1 Systems and methods for efficiently backing up data in thin-provisioned environments 有权
公开(公告)号：US09953035B1
公开(公告)日：2018-04-24
申请号：US12609213
申请日：2009-10-30
申请人： Niranjan Pendharkar , Samir Desai
发明人： Niranjan Pendharkar , Samir Desai
IPC分类号： G06F17/30
CPC分类号： G06F17/30067
摘要： An exemplary method for efficiently backing up data in thin-provisioned environments may include: 1) identifying a volume to be backed up, 2) identifying a thin-provisioned storage system that contains storage space allocated to the volume, 3) obtaining information from the thin-provisioned storage system that identifies portions of the volume for which storage space has been allocated on the thin-provisioned storage system, and then 4) creating a backup of the volume by invoking read operations only for those portions of the volume for which storage space has been allocated on the thin-provisioned storage system. Various other methods, systems, and computer-readable media are also disclosed.

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